condition mean min max 3 h after light 638.8466666666667 578.488 716.899 6 h after light 739.778 598.085 938.468 9 h after light 612.7413333333334 447.732 746.326 12 h after light 485.7215 412.972 528.622 3 h after dark 778.748 741.003 824.614 6 h after dark 610.884 560.614 686.652 9 h after dark 703.8013333333333 640.022 800.661 12 h after dark 590.9404999999999 585.281 596.6